RICHMOND, Va.--(BUSINESS WIRE)-- Harris Williams & Co., a preeminent middle market investment bank focused on the advisory needs of clients worldwide, announces the sale of DuBois Chemicals, Inc. (DuBois) to Aurora Capital Group (Aurora). DuBois is a leading provider of customized chemical solutions for mission-critical business applications. DuBois was a portfolio company of The Riverside Company (Riverside). Harris Williams & Co. acted as the exclusive financial advisor to DuBois. The transaction closed on December 20, 2012, and was led by Patrick McNulty, Ned Valentine, Darwin Olympia, Brad Morrison and Andrew Bagby from the firm's Richmond office.

"DuBois is a remarkable platform with an excellent management team. The company has done an exceptional job executing its strategic plan and is poised to capitalize on its new partnership with Aurora. It has been a pleasure working with DuBois and Riverside, and we look forward to following the company's continued growth," said Patrick McNulty, a managing director at Harris Williams & Co.

DuBois, based in Sharonville, OH, is a leading provider of value-added specialty chemical products and services to the industrial, transportation, pulp and paper, and water industries. DuBois offers a broad range of proven and customized chemical solutions predicated upon superior customer service and technical support. DuBois' differentiated offerings reduce downtime, minimize defects, extend equipment life and generate high ROI for customers in mission-critical applications. The company has an established track record of new product development and innovation with superior in-house R&D and engineering capabilities.

Riverside is a global private equity firm focused on acquiring leading enterprises and partnering with strong management teams to enhance the success of its companies through acquisitions and organic growth. Since its founding in 1988, the firm has invested in more than 300 transactions with a total enterprise value of more than $7.5 billion. The firm's portfolio in North America, Europe and Asia includes more than 80 companies with approximately 13,000 employees. Riverside offers the resources to complete acquisitions smoothly - thanks to its more than $3.2 billion in assets under management, more than 220 professionals in 20 offices and its longstanding relationships with partner lenders. The firm's investors include the world's leading pension funds, endowments, funds of funds, insurance companies and banks.

Investment banking services are provided by Harris Williams LLC, a registered broker-dealer and member of FINRA and SIPC, and Harris Williams & Co. Ltd, which is authorized and regulated by the Financial Services Authority. Harris Williams & Co. is a trade name under which Harris Williams LLC and Harris Williams & Co. Ltd conduct business.